feat: MCP integration - AI assistant support for panel management

- Add 10 workflow-based tools (query, manage_user, manage_node, etc.)
- Add 6 AI prompts for common workflows
- SSE-based JSON-RPC 2.0 endpoint at /api/mcp
- New mcp:enabled API key scope
- UI section in settings with config generator
- Easter egg motto in MCP section

Author: ddddeadispose

README.md

@@ -84,6 +84,7 @@ MONGO_PASSWORD=yourmongopassword   # openssl rand -hex 16
 - 🔑 **API Keys** — Secure external access with scopes, IP allowlist, rate limiting
 - 🪝 **Webhooks** — Real-time event notifications with HMAC-SHA256 signing
 - 🗺 **Network Map** — Visual cascade topology with Forward/Reverse chain routing *(beta)*
+- 🤖 **MCP Integration** — Native AI assistant support (Claude, Cursor, etc.) for panel management
 
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README.ru.md

@@ -85,6 +85,7 @@ MONGO_PASSWORD=парольмонго         # openssl rand -hex 16
 - 🔑 **API-ключи** — безопасный внешний доступ со скоупами, IP-фильтром и rate limiting
 - 🪝 **Вебхуки** — уведомления о событиях с подписью HMAC-SHA256
 - 🗺 **Карта сети** — визуальная каскадная топология с Forward/Reverse Chain *(бета)*
+- 🤖 **MCP-интеграция** — нативная поддержка AI-ассистентов (Claude, Cursor и др.) для управления панелью
 
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